iZip is an indispensable utility app that can be used to unarchive a range of files, such as ZIP, RAR, 7Z, ZIPX, TAR, GZIP, BZIP, TGZ, TBZ, ISO, DEB, CAB, JAR, RPM, CBS, at lightning speed on iPhone and iPad. See how it can open and extract files from compressed archives on iOS device below.
Add archives to iZip
Run the zip & unzip app on your iOS device, you will see its home screen like this.

Tap on Document Browser to explore your files saved in the stock Files app on your iPhone or iPad and import the archive file to iZip app. All imported files can be found under the Files tab in iZip app.

Unarchive files on iPhone iPad
Once you opened the Files list in iZip, simply tap on an archive file, could it be ZIP , RAR, 7Z or else, you will get a prompt like this.

Tap on OK button to unzip or extract all files from the archive file. All files contained in the archive will be exported to the Files folder in iZip.
Preview content & selectively unzip files
If you like to preview the files contained in the archive file or need only to select and extract certain files from it, choose Cancel to not to extract all files. Then preview and select any file you want and unarchive it.

Other unzip solutions for iPhone iPad
- FileMaster: a free file manager and explorer for iOS which comes with the zip, unzip utility. Check out this tutorial to unzip files on iPhone with it. It however supports only RAR and ZIP file types. You can’t preview files contained in an achieve file or select only part of the files to extract.
- FileExplorer: another third-party file manager app for iOS, offers both free and paid versions. Follow this guide to zip and unzip files on iPhone with it.
- Documents: a free file manager from Readdle team; it offers many useful features; you can follow these steps to unzip files on iOS devices for free.